A. Convert the following units 2.5 to lby.m 4.1 gmot C to mol K CH/ is B. Prandtl number, which can be calculated by using the following equation Pr = one of the group dimensionless units. show that. Where, k:is thermal conductivity .K). C: specific heat (.K), and u: dynamic viscosity (2.s) Problem 5 Two forces, F1 and F2, are acting on an object. F1 is 20 N and acts at an angle of 20 deg relative to the horizontal axis. F2 is 7N and act at an angle of 95 deg relative to the horizontal axis. Calculate the magnitude and direction of the resultant force. 5 Solve the following inequality. x2- 6x >0 Select the correct choice below and, if necessary, fill in the answer box. OA. The solution set is (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.) OB. There is no real solution.